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I'm going to change the world (thelemmy.club)

submitted 8 hours ago by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] ladicius@lemmy.world 3 points 1 hour ago

Life became much better for algae. So yes.

[-] Deme@sopuli.xyz 1 points 51 minutes ago

No. They killed themselves off to near extinction several times as the planet repeatedly froze over.

[-] prenatal_confusion@feddit.org 1 points 21 minutes ago

Can you explain this to me please?

M understanding is that photosynthesis takes CO2, binds the c to the plant and emits O. (Basically)

How does that lead to extinction of algae? Like, depleting the carbon resources?

[-] Deme@sopuli.xyz 1 points 10 minutes ago

The Great Oxidation Event had atmospheric greenhouse gas levels plummet, which resulted in the young and comparatively weak sun not being able to keep the planet warm, resulting in the Huronian glaciation.

[-] gandalf_der_12te@discuss.tchncs.de 27 points 6 hours ago

there are 3 sources of energy on the surface of earth:

energy from inside earth (geological heat)
energy from the moon (tides can make water go up and down -> generates energy)
energy from the sun (and hypothetically, other stars)

so, the thing is that earth's internal heat generates 0.03% of the energy on the surface of Earth (source) while i couldn't find any numbers for the moon (so i guess it's too low to mention). so basically everything comes from the sun.

and this is true for living beings. living beings can live off the sun's energy (photosynthesis) or they don't, in which case they're utilizing Earth's internal processes (volcanoes, ...) as an energy source.

basically all life was dependent on energy from inside the Earth before photosynthesis was developed, which is severely restricted. this is why this is such a big breakthrough.